BIOL354 Lecture Notes - Lecture 8: Rainbow Trout, Methylmercury, Bioaccumulation
14 Jun 2020
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Lecture 6&7 other factors that influence bioavailability: temperature. Influences biochemical & physiological process that are associated with bioaccumulation. In general, increases in temperature (within normal physiological conditions) increase bioaccumulation: eg. 1. 5 time increase in retention of methyl mercury in rainbow trout from temps 0. 5 to 4. 0 c than at 16 to 19 c, allometry. The study of size and its consequences is important in estimating bioaccumulation. Size influences metabolic rate, physiology, anatomy, and biochemical qualities of an organism: sex. Eg. female fin whales can transfer toxicants to young reduces bioaccumulation: males do not have this ability to reduce bioaccumulation, read in van gestel, section 3. 6 bioavailability, https://maken. wikiwijs. nl/147644/environmental_toxicology__an_open_online_textbo ok#!page-5415211. Case study: bioaccumulation in bivalves: factors influencing bioaccumulation in bivalves. Bivalves serve as a useful organism to study bioaccumulation because of well understood biological processes many that contribute to accumulation of pollutants. Bivalves filter large volumes of water feeding & respiration: exposure to dissolved & particulate-sorbed compounds, factors include.
